<template>
  <div class="wrap">
    <swiper :options="swiperOption"
            v-if="showSwiper">
      <!-- slides -->
      <swiper-slide v-for="item of list"
                    :key="item.id">
        <img class='swiper-img'
             :src="item.imgUrl" />
      </swiper-slide>
      <!-- Optional controls -->
      <div class="swiper-pagination"
           slot="pagination"></div>
    </swiper>
  </div>
</template>

<script>
export default {
  name: 'HomeSwiper',
  props: {
    list: Array
  },
  data () {
    return {
      swiperOption: {
        pagination: '.swiper-pagination',
        loop: true
      }
    }
  },
  computed: {
    showSwiper () {
      return this.list.length
    }
  }
}
</script>
<style lang="stylus" scoped>
// 穿透，改变所以wrap组件下的swiper-pagination-bullet-active
.wrap >>> .swiper-pagination-bullet-active {
  background: #fff !important;
}

.wrap {
  overflow: hidden;
  width: 100%;
  height: 0;
  padding-bottom: 26.5%;
  background: #eee;

  .swiper-img {
    width: 100%;
  }
}
</style>
